Hydraulic loader



B. L. MONTAGUE HYDRAULIC 'LOADER June 6, 1950 5 Sheets-Sheet 1 FiledNov. 29, 1946 lNl ENT 01(,

B. L. mi

June 6, 1950 B. MONTAGUE 2,510,411

HYDRAULIC LOADER Filed Nov. 29, 194B 5 Sheets-Sheet 2 INVENTOR,

w flLJmoniayue,

BY I

ATTORNEY.

June 6, 1950 B. MONTAGUE 1 HYDRAULIC LOADER Filed Nov. 29, 1946 5Sheets-Sheet 5 HIIIII' I B. Z. .Moniayue,

QII

June 6, 19 50 I B. L. MQNTAGUE HYDRAULIC LOADER V 5 Sheets-Sheet 4 FiledNdv. 29, 1946;

INVENTOR, .B. Z. MOnZague, BY

ATTORNEY.

June 6, 1950 5. 1.. MONTAGUE v HYDRAULIC LOADER Filed Nov. 29, 1946 5Sheets-Sheet 5' 7 fiifili;

.HOLD 75 INVENTOR,

ELM 071% ue,

ATTORNEY.

UNITED n eBerhInMontague, Sumter, S. A piiatiafinotniiif 29, 1946.-Serial No. 712,969 i vweclaimsi (amas -99) iisefin loading*"pulpwoddlogs' bbifts 611 a" truck 02" 017Hl"slllittb1' vehic Gnricallytheinventibn"has"fo' it object to'ffprovidea simple-j"relat velyflight 11strong paratus for the above purfiess- Whichtcah be inexpensivelymanufacturedjcan beeasily transportfd from place tWpIa'Cea'iifl w effectely ether serveits'intended purposes. e 7 flthe'rfobjects willinlpart'b' obvious and" in; part b'e pointed out hereinafter. v

To the attainment of 'theafjor"e"saidfobjeets andends' inventionstilljfurthef' resides in-the novel details of construction, combinationan arrangement of parts, allof whicwwill'be first fully'described in thefollowing'fietai ddeserip tion, and then be particularly'poin H utin theappended claims; reference bei'ng-had-tb thea'ccompariying'drawings;'inwhich? I Fig. 1 -is a side elevation of 'aloader which embodies myinvention?" I Fig.- 2 is an enlarged topplanviewo'f thetruck fraine, the conveyor chains being'fbirfitted;also the"cover plates and floor plate later hereinafter ef t 1; amlfim I? Fig. 3is an enlarged top plarrview of rheupper or pivoted conveyor frame, the*chains being dfrlitted. l Fig: 4 isa cross section 'on"-the"line fatMAL. o 4

Moi

*FFi is asection onthe line '5 '5 ef-Fig. 3. Fig; 6 is a detailsection-onthe line-b-avof Fig. 2 on the scale of Fig. 1 and "showing"the cover plates inplace. I i 'j' Fig. '7 is aside elevation of beams.

Fig. 8 is a cross section on the linet- -w of 7 I .1 .f l.- Fig. 9 is anenlargeddetail Sid lvation' of one o'fthe chain-dogs. is '--Fig.,l0 is aplan view of the parts'sh0wnin Fig.0. Fig. 11 is a detail plan view of aportionof the base frame, floor plate andpa'rt mounted t e Y s I p;-Fig.'12 is a diagram-maticview system for raising and loweri conveyor.Tzr 1.. A j il'nthe drawings in which like numerals and letters ofreference indicate like partsirr jal-l the figures I indicates the"sidelongitudinal channel ilOIis and: the Cross bamsbf the-ti llk'fraifii th hydrauIic he upper iii To the rear ends of the channel ironstail-shaft supporting plates3"ar"e welded?- woe-Lemaitre 4 extendscrosswise between and is welded to the plates 3. Ksecbnd cros's plate 5spaced" wardly from plate 4 and it also is welded to the plates 3':"Abot'toni plate 6' w'ldedth plates 4 an 5" and the" plates 35apartition- =1 being braced by angle braces m "and a crosschannel iron"19'. Bearing "head supports I8 are-plats secured to. the trough ll andtheseplates have bearirigh'eads 20 for the'conveyor'drive'shaft 2|.

""j'Bearings :24' arfsecure'cl"'t0 the plates and carry thel0'wercbiWe'yOr shaft- 2'2. The 2| and"22 have sprockets 23"respectively which line up with the respective troughs l l and aroundwhich l'owef conveyor chains 46 pa'ss,*the upper fiights'of these chainsride on wear plates-'-I2* that lie in the troughs and'are-removablysecured by"countei sunk'-head bolts and' nuts [3P "A top-plate or coverplate-l!- is moume be tween'the T-irons -IU (Fig; 6) and atop plate IBis mounted 'on'-"a frame I'S secured to'ithe end beam-""Z and channeliron-'l9.'' -j-Th'e -parts shown inFig; 6c'ons'titute the tr ucl'; frameafid with the wheeled axle 25 comrise the truck. 1 r e Hinge lugs 28*aresecured to the beam-=2 ndcarry a pivot pin 29 for the hydraulicbylinderfi'llater again referred=to.-- 1;

'The upper or deliveringconveyor frame is best shown-in Fig 3 byreferenceto which aiid 'to' Figs.- 1,4 and 5 it will be seen that thereare tivo sideinverted 'T-sectipn beams 3B to which 'cl'ian nelir'onsforming" chain troughs 3ll are welded (Fig. 4). These side beams are'cros's braced by a'liibtW-and a p1at 3'l,'- the latter lying adjjacentthe rock shaft bearings 38 in which-the shaft 39 is mounted and' towhich the -piston rod of -the hydrauli'c lift is pivotedl Lower bearinghead supports 31 are Welded to the troughs 34 and pipe-36 and areprovided with bearings 8'2 fol" theshaft' Z-l here'inbeforefireferredtow Sprock ets 33 for the" upper -conveyon' chain's 41 l are mounted onshaft 2| in line with the troughs 3|. The troughs 3| are provided withwear plates 35 similarly to those l2 of the troughs Bearing headsupports 40 are attached to the upper ends of the troughs 3| and carryadjustable bearings 4| for the conveyor shaft 42 on which sprockets 43are mounted to line up with the troughs 34 and sprockets 33. Chainshaving log pushers pass around the sprockets 33-43 with their upperflights running in the troughs 34.

The pushers comprise certain links 52 on which are carried the uprightfingers 49 whose free ends are preferably bent or curved in a forwarddirection as at 48, the fingers being braced by side braces 5| and acenter brace 50 as shown best in Figs. 9 and 10.

The free end of the upper conveyor is provided with a head shaft guardcomposed of curved side bars 44 and a cross bar 45 (see Figs. 3 and 5).

A hydraulic lift includes a cylinder 61 and a piston whose rod 68 ispivoted to the shaft 39, the cylinder being pivoted on the pin 29 (seeFig. 2).

In Fig. 11 is shown the floor plan of the power plant, by reference towhich it will be seen that a floor plate 53 is mounted on the channelirons (welded or otherwise secured). On this floor 53 is mounted asuitable engine 54, having a flywheel 54 and whose shaft 54 carries atriple groove pulley 54 Mounted in bearings 60 is a shaft 56 on whichruns a clutch pulley 55 that is driven from pulley 54 by belts 51. Ashiftable clutch element 58 is suitably keyed to the shaft 56 and may bebrought into and out of engagement with the clutch element 55* of theclutch pulley by means of a lever 59. As the construction of the clutchdevice is well known and per se is not of my invention furtherdescription of the same is unnecessary.

The shaft 56, via a sprocket and chain connection 63 drives a shaft 6|that is mounted in bearings 62 and has a sprocket 64 around which andthe sprocket 66 a conveyor driving chain 65 passes.

On a suitable support 69 a pressure pump is mounted and driven via belt12 and pulleys 54 H by the motor or engine 54.

Referring now to Fig. 12 it will be seen the hydraulic system forraising and lowering the conveyor includes an oil tank 13, a controlvalve 74, a pressure pump 10, a pipe from tank 13 to the L. P. side ofValve 14, a pipe 16 from pipe to the top of cylinder 67, a pipe 19 fromthe L. P. side of the pump 10 to tank 13, a pipe 11 from the H. P. sideof the pump 10 to the H. P. inlet side of control valve 74 and a pipe 18from the H. P. outlet side of control valve 14 to the lower end of thecylinder 67. The specific hydraulic lift system may be of any approvedtype and per se is not claimed in this application.

In operation logs L (Fig. 1) are placed on the lower conveyor andcarried up to the upper conveyor where the logs are taken up by thepushers of the upper conveyor and discharged over the guard 44 onto thetruck or other place of deposit.

As the logs pile up at the place of delivery the free end of the upperconveyor is raised accordingly. If the weight of the mechanism to theright of wheels 2'! in Fig. 1 is insufficient to overbalance the weightof the conveyor and its load to theleft of the wheels 21 a suitableamount of sand, dirt, gravel, rock or water is placed in the ballast boxon the ground.

From the foregoing it will be seen that I have provided a very simple,strong, easily manipulated loader for the desired purposes and I wish itunderstood that changes in the construction of the parts may be madewithin the scope of the appended claims without departing from theinvention.

What I claim is:

1. In a loader of the class described, a two- .wheeled truck, a twostage elevator mounted on said truck, one stage of said elevator lyingto one side of the axis of the truck wheels, the other stage of saidelevator lying in major part to the. other side of said axis, the secondstage of said elevator being substantially longer than the first stage,said elevator stages having a conveyor shaft in common, means to applydriving power to said common shaft, and means for overbalancing theweight of the second stage and its load on the wheelaxis as a pivot.

2. In a loader of the class described, a truck frame, an axle carryingtwo wheels for supporting one end of .said frame, the other end of saidframe being constructed to rest on the ground when the loader is in use,an endless chain conveyor fixedly mounted on said frame and inclinedupwardly from the ground-engaging end of the frame toward the wheeledend of the same, a second endless chain conveyor one end of which ispivotally mounted at the upper end of the first mentioned endless chainconveyor and extending beyond the wheeled end of said frame, saidconveyors having a conveyor driving shaft in common, means to applydriving power to said common driving shaft, hydraulic means carried bysaid frame and operatively connected to said second endless chainconveyor for raising and lowering the same, and a towing bar connectedto the ground-engaging end of said frame.

3. In a loader of the class described, a truck including a frame unitcomposed of side longitudinal channel irons and cross beams, upwardlyinclined beams extending upwardly from one end of said channel ironstoward the other end thereof, conveyor troughs mounted on said upwardlyinclined beams, bearing head supports secured at each end of saidinclined beams, a brace connecting said upwardly inclined beams and saidside longitudinal channel irons, ballast-box plates connecting the lowerbearing head supports and constituting therewith a ballast box, awheeled axle supporting one end of said truck, bearing heads on saidbearing head supports; conveyor shafts mounted in said supports andhaving sprockets, endless chains passing about said sprockets and havingpushers; a second endless chain conveyor one end of which is connectedpivotally to the higher of said conveyor shafts and overhanging saidtruck frame; means on said truck frame for raising and lowering saidsecond conveyor; means on said truck frame for driving both conveyors;and a tow bar by which said truck frame may be pulled from place toplace.

4. In a loader of the class described, a truck including a frame unitcomposed of side longitudinal channel irons and cross beams, upwardlyinclined beams extending upwardly from one end of said channel ironstoward the other end there! of, conveyor troughs mounted on saidupwardly inclined beams, bearing head supports secured at each end ofsaid inclined beams, a brace connecting said upwardly inclined beams andsaid side longitudinal channel irons, ballast-box plates connecting thelower bearing head supports and constituting therewith a ballast box, amotor guard frame secured to said side channel irons and to said brace,a top plate on said motor guard frame, and a shield plate secured to andbetween said upwardly inclined beams, a Wheeled axle supporting One endof said truck, bearing heads on said bearing head supports; conveyorshafts mounted in said supports and having sprockets, endless chainspassing about said sprockets and having pushers; a second endless chainconveyor one end of which is connected pivotally to the higher of saidconveyor shafts and overhanging said truck frame; means on said truckframe for raising and lowering said second conveyor; means on said truckframe for driving both conveyors; and a tow bar by which said truckframe may be pulled from place to place.

5. A loader according to claim 4 wherein the conveyor-driving meansincludes a motor and power transmitting mechanism located beneath saidtop plate and said shield plate.

6. In a loader of the class described wherein is provided a portabletruck comprising a frame, a two wheeled axle supporting one end of saidframe, a second support for the other end of the frame, and a powerplant on said frame; a lower conveyor mounted on said frame andextending from said second support upwardly to a place above the frameadjacent to but short of a vertical plane passing through the wheeledaxle, said conveyor including a lower axle and an upper axle, sprocketson said last two axles and endless chains connecting the upper and loweraxles sprockets; a second conveyor comprising a frame pivoted to theupper axle of the first mentioned conveyor, a third axle at the free endof the second conveyor frame, sprockets on said third axle and one theupper axle of the first mentioned conveyor frame, sprocket chainsconnecting the sprockets for said second conveyor, all said chainshaving fingers at predetermined intervals along the lengths of thechains; a driving connection from the power plant directly to the commonshaft of said conveyors; and means on the truck and connected to saidsecond conveyor for raising and lowering the free end of the same.

BERT L. MONTAGUE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 329,148 Doan Oct. 27, 1885504,589 Kaime Sept. 5, 1893 730,879 Conroy et al June 16, 1903 733,824Dueringer July 14, 1903 869,654 Rideout Oct. 29, 1907 877,210 Martin etal Jan. 21, 1908 1,212,617 Flowers Jan. 16, 1917 1,281,668 Saunders Jan.16, 1917 1,466,524 Folland et al Aug. 28, 1923 1,520,332 Connolly Dec.23, 1924 1,756,106 Swenson Apr 29, 1930 1,763,424 Duncan June 10, 19301,893,917 Walker Jan. 10, 1933 2,019,938 Stephens Nov. 5, 1935 2,384,304Arnett et al. Nov. 16, 1943 2,397,959 Gephart Apr. 9, 1946 2,408,863Lisota Oct. 8, 1946

